Thus, when heat is applied to a stream of product entering a fractionation tower, lighter components vapourize and move to the top of the tower; heavier components drop to the bottom.
2.
Now, as you've pointed out, you would need more fuel to vapourize for cooling the engine than you would need as fuel to burn, so there's that problem with this idea.
3.
If that pressure is released because of a leak, that fuel will vapourize more or less instantly and fill the engine bay, causing an explosion hazard . talk ) 02 : 47, 23 August 2012 ( UTC)
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